Purpose: The aim was to retrospectively evaluate the frequencies of different complications,
as well as the number of visits to dentists because of such complications, after treatment
with implant-supported fixed prostheses. Materials and Methods: The study group
comprised 75 patients who had been treated with implant-supported fixed prostheses
3 years earlier. All case records were scrutinized, and notes of complications in association
with implants and superstructures were registered. Results: The most common intervention
made was occlusal adjustment/selective grinding of the prostheses. Complications in
association with both implants and superstructures were fairly common. The most frequent
complication was fractures of the acrylic resin matrix, including artificial acrylic resin teeth.
Consultations because of periimplant mucosal inflammation were much more common
among women compared to men, while complications that could be attributed to heavy
loading tended to be more common in men. Conclusion: Complications with both implants
and superstructures are fairly common after treatment with implant-supported fixed
prostheses. Regular follow-ups to maintain optimal function in these patients are thus
mandatory. Int J Prosthodont 2003;16:201–207.

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